An electronic device is disclosed, which includes a touch display module, a frame for placing the touch display module, plural elastic pieces extended from a sidewall of the frame, a casing, a fastener, and plural adjusting screws. The fastener fastens the frame to the casing. The adjusting screws are inserted in the elastic pieces and are screwed in the casing. The depth of the adjusting screws screwed in the casing can be adjusted for adjusting a relative height between the touch display module and the casing.